EP 2914811 A4 20160706 - DISTRIBUTED FEEDBACK FIBER LASER STRAIN SENSOR SYSTEMS AND METHODS FOR SUBSURFACE EM FIELD MONITORING
Title (en)
DISTRIBUTED FEEDBACK FIBER LASER STRAIN SENSOR SYSTEMS AND METHODS FOR SUBSURFACE EM FIELD MONITORING
Title (de)
FASERLASERDEHNUNGSSENSORSYSTEME MIT VERTEILTER RÜCKKOPPLUNG UND VERFAHREN FÜR UNTERIRDISCHE ELEKTROMAGNETFELDÜBERWACHUNG
Title (fr)
SYSTÈMES DE CAPTEUR DE CONTRAINTE À LASER À FIBRE À RÉTROACTION RÉPARTIE ET PROCÉDÉS DE SURVEILLANCE DE CHAMP ÉLECTROMAGNÉTIQUE (EM) SOUTERRAIN
Publication
Application
Priority
- US 201313756601 A 20130201
- US 2013067288 W 20131029
Abstract (en)
[origin: US2014222343A1] A disclosed subsurface electromagnetic field monitoring system includes at least one fiberoptic cable to optically communicate measurements from an array of electromagnetic field sensors in a borehole. The array of electromagnetic field sensors includes a distributed feedback fiber laser strain sensor with electromagnetic field sensitivity
IPC 8 full level
E21B 47/12 (2012.01); E21B 47/135 (2012.01)
CPC (source: EP US)
Citation (search report)
- [Y] US 2003205083 A1 20031106 - TUBEL PAULO [US], et al
- [Y] US 2009102474 A1 20090423 - CRANCH GEOFFREY A [US], et al
- [Y] MINGHONG YANG ET AL: "Optical fiber magnetic field sensors with TbDyFe magnetostrictive thin films as sensing materials", OPTICS EXPRESS, vol. 17, no. 23, 1 November 2009 (2009-11-01), pages 20777 - 20782, XP055274133, DOI: 10.1364/OE.17.020777
- See references of WO 2014120305A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 10241229 B2 20190326; US 2014222343 A1 20140807; AU 2013376922 A1 20150528; BR 112015015950 A2 20170711; CA 2896991 A1 20140807; EP 2914811 A1 20150909; EP 2914811 A4 20160706; WO 2014120305 A1 20140807
DOCDB simple family (application)
US 201313756601 A 20130201; AU 2013376922 A 20131029; BR 112015015950 A 20131029; CA 2896991 A 20131029; EP 13873434 A 20131029; US 2013067288 W 20131029